Cushion head for stapling devices



Jan. 29, c. ELHALLEN 2,393,769

CUSHION HEAD FOR STAPLING DEVICES Filed July 21, 1943 Patented Jan. 29,1946 CUSHION HEAD FOR STAPLING DEVICES Carl .E. Hallen, Mount Prospect,Ill., assignor to J. B. Crofoot 00., Mount Prospect, 111., a corporationof Illinois Application July 21, 1943, Serial No. 495,634

3 Claims.

My invention relates to a cushion head for st pling devices and thelike, designed to be struck by the hand or fist to operate the same.

The object of the invention is to provide a cushion head of the abovestated character, designed to replace flexible rubber caps or cushions,which are not available at the present time, due to the demands andshortages of rubber, and which is simple in construction and economicalto manufacture, using plenty of available material and a minimum ofmetal, plastic or equivalent material, and felt or similar soft, pliablepadding, shock-absorbing or cushioning material, which may be readilyassembled in a novel manner to a plate for attaching the same to thehead of a stapling device, punch or similar device, whichis struck bythe hand, fist or even the palm of the hand, for operating the same, soas to cushion the plate and blow and prevent injury to'the hand of theoperator.

Another object is to provide novel means to attach or couple the deviceto the striking, pres sure or operating head of the stapling or otherdevice, which means is also constructed to secure firm and properattachment of the felt or similar cushioning material thereto, to becontacted by the hand in operating the stapler or other device.

Further objects and advantages will appear and be brought out more fullyin the following specification, reference being had to the accompanyingdrawing, in which:

Fig. 1 is a perspective View showing a stapler having an operating orpressure head equipped with the invention.

Fig. 2 is a perspective view of a plate constituting a part of thedevice for coupling the cushion to the head.

Fig. 3 is a top plan view of the plate shown in Fig. 2.

Fig. 4 is a sectional view, taken on the line 44 of Fig. 3, showing theplate and indicating one layer of felt applied thereto, in dotted lines.

Fig. 5 is a similar view showing the cushion fastened in position.

Fig. 6 is a bottom view of the plate, and

Fig. 7 is a fragmentary side elevation showing the cushion applied to anoperating head.

Referring to the drawing in detail, in which like reference charactersdesignate corresponding parts throughout the several views, I0designates a stapling device of ordinary or known form, but may be apunch or like device having a frame with a vertical guideway or sleeveII, in which a plunger I2 is designed to move up and down. This plungerhas a circular, convex or rounded head I3, constituting an operating orpressure head adapted to be struck in operating thestapler, and is heldraised or upwardly disposed as by means of an expansible coil spring I4posi tioned between the guideway of the frame and the under side of thehead I3, which may be cushioned underneath, if desired, by rubber or thelike, felt or other cushioning material.

The edge of the head, which may be riveted to the plunger or shank, mayhave its edge turned over and under, or may be otherwise suitably formedto give the circular convex shape described.

The anchoring or coupling means for the cushion consists of a circularplate I5 of spring sheet metal, plastic or the like of a concave-conevex formation having a turned flange or edge I6 directed in roundingformation downwardly at right angles, axially away from the convex sideand beyond the concave side so as to exactly fit the periphery orrounded edge of the head I3. This plate is formed with suitable, andpreferably equi-distantly spaced lugs I'I (shown as sixin number),projecting from the edge I6 in the same direction, and preferablyrounded as shown in convex formation so as to be bent under the head I3to retain the plate in position on the head. The plate is also providedwith a plurality of pointed tongues or tapered prongs I8 (shown as fourin number), suitably spaced preferably equi-distantly, and struck outfrom the body or metal of the plate to form tapered or triangularcut-outs I9, resulting therefrom when the tongues are bent upwardly, soas to extend axially in a direction opposite that in which the lugs I!extend, but located within the peripheral edge or area of the plate I5.

To a plate so formed, a layer or ply of felt or similar cushioning orpliable material 20, in the form of a disk, is applied to be piercedunder pressure by the tongues I8, as shown in Fig. 4 of the drawing. Theends of the tongues are bent over as shown at 2| in Fig. 5 of thedrawing, to securely attach the layer 20 to and in conformity with theconvex side or face of the plate, and prevent accidental disconnectionthereof.

It is to be understood that the felt disk may be under pressure whileapplied, but especially while the tongues are being bent, although thisis not absolutely essential. The cushioning material may be felt, thatis, fabric, compacted by pressure or heat, or other similar soft,compressible material. Any number of layers or plies may be employed togive the proper thickness,

whereby a cushioning action may be obtained,

but as shown, an intermediate layer or ply 22, preferably with thefabric loose or less tightly compacted, is preferably employed. This maybe fastened to the top of the layer 20 by suitable adhesive orotherwise, as indicated at 23, and a top layer or ply 24 of felt issimilarlyiastehed to the top of the intermediate layer 22. The top layer24'-alsd"is'fpreferably tightlymohipactdf tfi same as thebot'tom-layer2c, and may have' its peripheral edge continuously convexly rounded V ontop, as indicated at 25,'so as to better conform to the palm of thehand, although pressure may be employed in any other suitable way, as bystriking the cushion with any soft part of the hand, or even thefist orotherwise, to depress the same and operate the stapler or other deviceto which it is applied. v 4

It will thus be seen that I have provided a very efiicient andeconomical cushion for the 'operating heads of stapling devices, punchesand V the like, adapted to be operated by hand, and

that thesame may not onlybe economically constructed, but easilyapplied,and firmly retain its position. I I V While I have illustrated anddescribed the preferred form of construction for carrying my inventioninto effect, this is capable of variation and modification withoutdeparting from the spirit of the invention. I, therefore, do not wishto'be limited to the precise details of construction set forth, butdesire to avail myself of such scope of the appended claims. r

, means for attaching cushioning material to the V operating head of astapler, said means includ- Having thus described my invention, what 1'claim as new and desire to secure by Letters Patent is:

' 1, In a cushioning device of the class described;

means for attaching laminated cushioning material to the operating headof a stapler, said means including a plate,means on said plate forsecuring a layer of cushioning material to the plate,' "afid;"=rneari sfor steer-meta to the operating-head of the stapler or the like.

2. In a cushioning device of the class described,

ing a plate and means on said plate for securing cushioning material tothe plate and for securing the plate to the operating head of thestapler or the like, saidmeans consisting of oppositely extendingprojections, the projections extending variations and modifications ascome Within the to connect a cushion to the plate and acushion- 7adapted to be connected to said plate, said cush ion consisting of aplurality of felt-like layers one of which is more compacted than theother,

layer or layers. V i

a I r CARL E. HALLEN.

